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Solder Alloy 801 vs. ASTM A369 Grade FP21

Solder alloy 801 belongs to the otherwise unclassified metals classification, while ASTM A369 grade FP21 belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 801 and the bottom bar is ASTM A369 grade FP21.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 22
140
Elastic (Young's, Tensile) Modulus, GPa 53
190
Elongation at Break, % 33
20
Poisson's Ratio 0.35
0.29
Shear Modulus, GPa 20
74
Tensile Strength: Ultimate (UTS), MPa 55
470

Thermal Properties

Latent Heat of Fusion, J/g 64
260
Melting Completion (Liquidus), °C 200
1470
Melting Onset (Solidus), °C 200
1430
Specific Heat Capacity, J/kg-K 240
470
Thermal Conductivity, W/m-K 61
41
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 19
8.8

Otherwise Unclassified Properties

Density, g/cm3 7.2
7.8
Embodied Carbon, kg CO2/kg material 14
1.8
Embodied Energy, MJ/kg 240
23
Embodied Water, L/kg 1140
61

Common Calculations

Stiffness to Weight: Axial, points 4.1
13
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 2.1
17
Strength to Weight: Bending, points 4.4
17
Thermal Diffusivity, mm2/s 36
11
Thermal Shock Resistance, points 3.3
14

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
2.7 to 3.4
Copper (Cu), % 0 to 0.050
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
94.3 to 96.2
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.8 to 1.1
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 89.9 to 91.5
0
Zinc (Zn), % 8.5 to 9.5
0